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486 motherboards using the OPTi OPTi 82C392, 82C493 chipset - MAME machine

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op82c392
486 motherboards using the OPTi OPTi 82C392, 82C493 chipset
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GAME SYSTEM CHD BIOS DEVICE PARENT CLONE MECHANICAL SCREENLESS

Main data
Romset and name:
op82c392 486 motherboards using the OPTi OPTi 82C392, 82C493 chipset
Short name:
486 motherboards using the OPTi OPTi 82C392, 82C493 chipset
Manufacturer:
-
Year:
199?
Genre:
Computer
Category:
Computer / Business - Terminal
Serie:
-
Driver source:
pc/at.cpp
Language:
Similar games:
Input / Controls
Players:
Only one supported
Input:
Mouse, Keyboard
Buttons / keys:
108
Coins:
0
Cabinet:
-
Free-play:
Not supported

Rankings
Average user rating:
AntoPISA BestGame:
-
MASH All-Time:
-
Video
Display:
640x480@60.054866 Hz, CRT 31kHz
Orientation:
Horizontal
Scrolling:
Unknown
Colors:
-
CPU:
AM9517A, Intel 8042AH, Intel 8051, Intel I486
Audio
Sound:
4 audio channel
Audio chips:
Filtered DAC, Floppy sound, Speaker
Romset
First release:
Mame 0.215 released on oct-30 2019
Last release:
Mame 0.289 released on jul-31 2026
Clone of:
ibm5170 PC/AT 5170
Bios:
Not required
Use rom of:
-
Use sample of:
-
Previous romset:
None
New romset:
None
Files
Dump:
GOOD
Required files:
Romset:
Status
OVERALL:
PRELIMINARY
Emulation:
Preliminary
Graphic:
Imperfect
Color:
Good
Sound:
Good
Cocktail:
Good
Protection:
Good
Save state:
Not supported
Additional info
  • History
  • Info
  • Score
  • PCB
  • Commands
  • Init
  • Driver
  • XML
  • Motherboard:

    486 motherboard using the OPTi OPTi 82C392, 82C493 chipset © 199? Unknown

    This chipset was a high-performance "Single-Chip" system controller (the 82C493) paired with a robust data buffer (the 82C392). It was designed specifically to provide full PCI 2.0 compliance for the 486 platform. It was highly favored by manufacturers who wanted to build boards that could compete with the ALi-based systems in terms of throughput, but with the added flexibility of OPTi's well-documented BIOS registers.

    TECHNICAL
    Processor Support: Optimized for the full 486 lineup: Intel 486DX, DX2, DX4, and the high-performance AMD 5x86 (up to 133MHz).

    Bus Architecture: True PCI/ISA/VLB potential. Most boards using this chipset (like the famous PCCHIPS M919 or various Abit models) were true "hybrid" boards, allowing for a bridge between older VLB peripherals and new PCI cards.

    Memory: Typically supported up to 128MB or 256MB of RAM using 72-pin SIMMs, often with advanced support for parity-checked memory—a holdover from the professional workstation requirements of the era.

    Cache: Features advanced Write-Back L2 cache support, which was essential for keeping the 486DX4 and 5x86 processors fed with data.

    TRIVIA
    The "Hybrid" King: The op82c392 is arguably one of the most common chipsets found on "multimedia upgrade" motherboards from 1994–1995. Because it could handle VLB and PCI simultaneously, it was the preferred choice for users who wanted to keep their VLB graphics card but add a PCI sound card or a PCI IDE controller.

    CONTRIBUTE
    Edit this entry: https://www.arcade-history.com/game/235605/?o=2
    Information provided by © Alexis Bousiges
    Information provided by Contribute to the translation
  • Information provided by
    Information provided by / © Copyright of Fujix
  • Information provided by
  • Information provided by
  • Information provided by Fabricio Coroquer, revisited from the work of
    NOTICE: The short version was discontinued in November 2019
  • Information provided by Contribute
  • Information provided by
  • Information provided by
Dip-switches:
Cheats:
Ports:
Devices refs:
Media options:
RAM options:
Software lists:
Link:




If you notice any inaccuracy or error, please report

Data updated on july 31 2026


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Romset:
op82c392
Title:
486 motherboards using the OPTi OPTi 82C392, 82C493 chipset
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